Nato Countries List 2025. To secure peace and stability in europe, in 1949, twelve countries on both sides of the atlantic formed the north atlantic treaty organization (nato) as a means of ensuring their collective security. Here are the other countries sweden now calls an ally.
What countries are in nato? The 2025 nato summit will be held at the world forum in the hague, the netherlands, from 24 to 26 june 2025.